1892 Graduation Photograph of Ralph Gifford, P.G.S., perhaps Plymouth Grammar School in Plymouth, Maine

Graduation photograph of Ralph Gifford, Class of 1892 at P.G.S.  The photograph was taken at the Howe studio in Pittsfield, Maine.

P.G.S. might have been Plymouth Grammar School, as there was a Ralph Prescott Gifford who was living in Plymouth, Maine, about that time.

From brief online research, hopefully correct - corrections and additions requested:

Ralph was perhaps Ralph Prescott Gifford (1876-1936), son of Sylvanus Prescott Gifford (abt 1830-1895) and Sarah F. (Lord) Gifford (abt 1837-1896) of Plymouth, Maine.  Ralph would marry Maud Harris (1880-1941) of Detroit, Maine, in 1899, when Ralph was farming in Plymouth and Maud was a student.  Ralph later worked for the railroad.  Neither of them listed an occupation on the 1930 Census.

As you can see from the map, Plymouth is not far from Pittsfield; it would not have been unusual for a Plymouth resident to travel to the larger community of Pittsfield to sit for a photograph.

If you have an alternate identity for the Ralph Gifford in the photograph, please leave a comment for the benefit of other researchers.